What Is It?

"I know!" said Cat. "We can play in the barn."

"Play what?" said Pig. "We can play What Is It?" said Cat.

"I see something yellow," said Cat. "What is it?"

Pig and Cow looked around.

"Is it hay?" said Pig. "No, it is not hay," said Cat.

"Is it the light?" said Cow. "No, it is not the light," said Cat.